local S -- Load translation library if intllib is installed:
if intllib then
	S = intllib.Getter(minetest.get_current_modname())
else
	S = function(s) return s end
end

-- Node will be called <modname>:stair_<subname>

function register_stair(modname, subname, recipeitem, groups, images, description, drop, light)
	return stairsplus:register_stair(modname, subname, recipeitem, {
		groups = groups,
		tiles = images,
		description = description,
		drop = drop,
		light_source = light,
		sounds = default.node_sound_stone_defaults(),
	})
end

function stairsplus:register_stair(modname, subname, recipeitem, fields)
	local defs = {
		[""] = {
			node_box = {
				type = "fixed",
				fixed = {
					{-0.5, -0.5, -0.5, 0.5, 0, 0.5},
					{-0.5, 0, 0, 0.5, 0.5, 0.5},
				},
			},
		},
		["_half"] = {
			node_box = {
				type = "fixed",
				fixed = {
					{-0.5, -0.5, -0.5, 0, 0, 0.5},
					{-0.5, 0, 0, 0, 0.5, 0.5},
				},
			},
		},
		["_right_half" ]= {
			node_box = {
				type = "fixed",
				fixed = {
					{0, -0.5, -0.5, 0.5, 0, 0.5},
					{0, 0, 0, 0.5, 0.5, 0.5},
				},
			},
		},
		["_inner"] = {
			node_box = {
				type = "fixed",
				fixed = {
					{-0.5, -0.5, -0.5, 0.5, 0, 0.5},
					{-0.5, 0, 0, 0.5, 0.5, 0.5},
					{-0.5, 0, -0.5, 0, 0.5, 0},
				},
			},
		},
		["_outer"] = {
			node_box = {
				type = "fixed",
				fixed = {
					{-0.5, -0.5, -0.5, 0.5, 0, 0.5},
					{-0.5, 0, 0, 0, 0.5, 0.5},
				},
			},
		},
		["_alt"] = {
			node_box = {
				type = "fixed",
				fixed = {
					{-0.5, -0.5, -0.5, 0.5, 0, 0},
					{-0.5, 0, 0, 0.5, 0.5, 0.5},
				},
			},
		},
		["_alt_1"] = {
			node_box = {
				type = "fixed",
				fixed = {
					{-0.5, -0.0625, -0.5, 0.5, 0, 0},
					{-0.5, 0.4375, 0, 0.5, 0.5, 0.5},
				},
			},
		},
		["_alt_2"] = {
			node_box = {
				type = "fixed",
				fixed = {
					{-0.5, -0.125, -0.5, 0.5, 0, 0},
					{-0.5, 0.375, 0, 0.5, 0.5, 0.5},
				},
			},
		},
		["_alt_4"] = {
			node_box = {
				type = "fixed",
				fixed = {
					{-0.5, -0.25, -0.5, 0.5, 0, 0},
					{-0.5, 0.25, 0, 0.5, 0.5, 0.5},
				},
			},
		},
	}

	local desc = S("%s Stairs"):format(fields.description)
	for alternate, def in pairs(defs) do
		def.drawtype = "nodebox"
		def.paramtype = "light"
		def.paramtype2 = "facedir"
		def.on_place = minetest.rotate_node
		for k, v in pairs(fields) do
			def[k] = v
		end
		def.description = desc
		if fields.drop then
			def.drop = modname .. ":stair_" .. fields.drop .. alternate
		end
		minetest.register_node(":" .. modname .. ":stair_" .. subname .. alternate, def)
	end
	minetest.register_alias("stairs:stair_" .. subname, modname .. ":stair_" .. subname)

	-- Some saw-less recipes:
	
	minetest.register_craft({
		output = modname .. ":stair_" .. subname .. " 8",
		recipe = {
			{recipeitem, "", ""},
			{recipeitem, recipeitem, ""},
			{recipeitem, recipeitem, recipeitem},
		},
	})

	minetest.register_craft({
		output = modname .. ":stair_" .. subname .. " 8",
		recipe = {
			{"", "", recipeitem},
			{"", recipeitem, recipeitem},
			{recipeitem, recipeitem, recipeitem},
		},
	})
	
	minetest.register_craft({
		type = "shapeless",
		output = modname .. ":stair_" .. subname,
		recipe = {modname .. ":panel_" .. subname, modname .. ":slab_" .. subname},
	})
	
	minetest.register_craft({
		type = "shapeless",
		output = modname .. ":stair_" .. subname,
		recipe = {modname .. ":panel_" .. subname, modname .. ":panel_" .. subname, modname .. ":panel_" .. subname},
	})
	
	minetest.register_craft({
		type = "shapeless",
		output = modname .. ":stair_" .. subname .. "_outer",
		recipe = {modname .. ":micro_" .. subname, modname .. ":slab_" .. subname},
	})
	
	minetest.register_craft({
		type = "shapeless",
		output = modname .. ":stair_" .. subname .. "_half",
		recipe = {modname .. ":micro_" .. subname, modname .. ":micro_" .. subname, modname .. ":micro_" .. subname},
	})
	
	minetest.register_craft({
		type = "shapeless",
		output = modname .. ":stair_" .. subname .. "_half",
		recipe = {modname .. ":panel_" .. subname, modname .. ":micro_" .. subname},
	})
	
	minetest.register_craft({
		type = "shapeless",
		output = modname .. ":stair_" .. subname .. "_right_half",
		recipe = {modname .. ":stair_" .. subname .. "_half"},
	})
	
	minetest.register_craft({
		type = "shapeless",
		output = modname .. ":stair_" .. subname .. "_half",
		recipe = {modname .. ":stair_" .. subname .. "_right_half"},
	})
	
	minetest.register_craft({
		type = "shapeless",
		output = modname .. ":stair_" .. subname,
		recipe = {modname .. ":micro_" .. subname, modname .. ":micro_" .. subname, modname .. ":micro_" .. subname, modname .. ":micro_" .. subname, modname .. ":micro_" .. subname, modname .. ":micro_" .. subname},
	})
	
	minetest.register_craft({
		type = "shapeless",
		output = modname .. ":stair_" .. subname .. "_inner",
		recipe = {modname .. ":micro_" .. subname, modname .. ":micro_" .. subname, modname .. ":micro_" .. subname, modname .. ":micro_" .. subname, modname .. ":micro_" .. subname, modname .. ":micro_" .. subname, modname .. ":micro_" .. subname},
	})
	
	minetest.register_craft({
		type = "shapeless",
		output = modname .. ":stair_" .. subname .. "_outer",
		recipe = {modname .. ":micro_" .. subname, modname .. ":micro_" .. subname, modname .. ":micro_" .. subname, modname .. ":micro_" .. subname, modname .. ":micro_" .. subname},
	})
	
	minetest.register_craft({
		type = "shapeless",
		output = modname .. ":stair_" .. subname,
		recipe = {modname .. ":panel_" .. subname, modname .. ":panel_" .. subname, modname .. ":panel_" .. subname},
	})
	
	minetest.register_craft({ -- See mirrored variation of the recipe below.
		output = modname .. ":stair_" .. subname .. "_alt",
		recipe = {
			{modname .. ":panel_" .. subname, ""},
			{""                            , modname .. ":panel_" .. subname},
		},
	})
	
	minetest.register_craft({ -- Mirrored variation of the recipe above.
		output = modname .. ":stair_" .. subname .. "_alt",
		recipe = {
			{""                            , modname .. ":panel_" .. subname},
			{modname .. ":panel_" .. subname, ""},
		},
	})
end